General frequet ask and question regarding Bitumen,oxidized bitumen,Paraffin,Gilsonite and rubber process oil

General Questions and Answers

what is international test method of rubber processing oil , DAE and TDAE ?

ASTM is international test method for RPO , DAE , TDAE , MES . RAE, TRAE ,...

is it possible to ship RPO in flexi tank as a bulk shipment?

no flexitank should fill in 20 DC containers , no vessel allowed to carry any product in flexibag with out container .

is it possibel to ship rubber processing oil in 40 foot containers with flexi tank ?

for safe shipping customers only can ship cargo in flexi tank only inside 20 foot containers.

How to discharge high viscosity RPO in cold weather from flexi tank ?

highe viscosity rubber process oil is thick  or at in low temperature in fall and winter time become more thicker . This will decrease the speed of emptying the cargo from the Flexitanks, for this purpose there are heating pads which are installed together with FLEXITANK. It is used just before start of emptying using steam or hot water inside, in order to increase temperature of a cargo. 

What is the differences between Jey bitumen and Pasargad bitumen?

Jey and Pasargad bitumen both refineries making top quality of bitumen in the world. But the main differences is ductility of bitumen. Jey bitumen is more ductile and need to add less additive to modify the bitumen! So it is more expensive and more favor for importer. For instance in China the standard ductility of bitumen is minimum 100 at 15c and Jey bitumen supporting this item easily while international standard is 100 cm at 25 centigrade. It is the main differences of Jey and Pasargad bitumen.

What is Benefits and Advantages of Flexi packing for exporting rubber processing oil ?


  • Total cost reduction and higher profit margin

  • Market price fluctuation hedge

  • Cash flow optimization

  • Prompt “door to door” delivery

  • Flexitank can be used for storage, either temporary or even as an alternative to a permanent storage tank

  • Integrated service: shipping containers can be transferred to trucks, so flexitank can serve as a cost-effective door-to-door package for/from deep inland and difficult to reach destinations

How customer can discharge RPO from flexi tank ?

There is a lot of way to unload rubber process oil from flexi tank :

  • Using heating pad under the bags so heating RPO make it more viscouze so it makes it more easy to discharge .

  • Tear the bags in rubber processing oil pool .

  • Pumping RPO from flexi to where we need such as oil pools , tankers , drums , … .


How Many metric ton we can load rubber processing oil (RPO) on flexitank ?

The volume of flexitanks is different, depending on the viscosity of rubber process oil, the capacity will be 22 MT/flexitank .

What is flexitank - flexi bag for packing rubber process oil ?

A flexitank is an alternative way for liquid oils such as rubber process oil , base oil , industrial oil , … which can be used in different transportation mode such as railway , road tanks , container and other forms of transportation. Most of the customers, who were initially receiving rubber process oil , RPO , DAE , TDAE, MES  in drums have found that it is much better to ship their cargo by flexi tank cause it is more cost effective .

What is the differences between RPO of Sepahan, Behran , Iranol, and Pars oil?

Sepahan starting from 40 Viscosity to 60 @ 100C
Behran RPO is maximum 30 at 100C
Pars oil is from 35 at 100C
You can not get test report from Pars oil!
Iranol is heavy rubber process oil.

Pars oil is cheaper than Iranol and then Sepahan and then Behran.

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